Preparation of Cp-Functionalized N-Heterocyclic Carbene Complexes of Ruthenium. Resolution of Chiral Complexes and Catalytic Studies
作者:André Pontes da Costa、José A. Mata、Beatriz Royo、Eduardo Peris
DOI:10.1021/om100090c
日期:2010.4.12
A series of piano-stool ruthenium(II) complexes bearing bidentate cyclopentadienyl-functionalized N-heterocyclic carbene ligands Ru(Cp-X-NHC)(CO)I [Cp = tetramethylcyclopentadienyl (Cp*) and tetrabenzylcyclopentadienyl (Cp-Bz)] have been prepared by the diastereoselective reaction of the imidazolium Cp-X-NHC proligands with [Ru-3(CO)(12)]. The new complexes have been characterized by spectroscopic techniques and X-ray diffraction methods. The enantiopure complexes have been separated by preparative thin-layer chromatography of the diastereomeric mixtures resulting from the reaction of the Ru(Cp-X-NHC)(CO)I compounds with an auxiliary chiral amine. Ru(Cp*-NHC)(CO)I is an efficient catalyst for the isomerization of allylic alcohols both in water and in THF.
Phénylation d'alcools allyliques acycliques
作者:William Smadja、Guy Ville、Gérard Cahiez
DOI:10.1016/s0040-4039(01)90043-7
日期:——
BOWEN, RICHARD D.;HARRISON, ALEX G., J. CHEM. SOC. PERKIN TRANS. PT 2,(1989) N0, C. 1483-1490
作者:BOWEN, RICHARD D.、HARRISON, ALEX G.
DOI:——
日期:——
GEORGOULIS, C.;VALERY, J. M.;VILLE, G., SYNTH. COMMUN., 1984, 14, N 11, 1043-1046